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| author | Harald Anlauf <anlauf@gmx.de> | 2020-12-03 20:33:22 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2020-12-03 20:33:22 +0100 |
| commit | 30b606bb9b9314010a446ea4bed3481632008f75 (patch) | |
| tree | 0940049a5dfabfad17c3a8760ae0ec9b244c9b0b | |
| parent | 656131e06aa76ba3cb50305c07cf5c8ee79fce44 (diff) | |
| download | gcc-30b606bb9b9314010a446ea4bed3481632008f75.zip gcc-30b606bb9b9314010a446ea4bed3481632008f75.tar.gz gcc-30b606bb9b9314010a446ea4bed3481632008f75.tar.bz2 | |
PR fortran/95342 - ICE in gfc_match_subroutine, at fortran/decl.c:7913
Add checks for NULL pointers before dereferencing them.
gcc/fortran/ChangeLog:
PR fortran/95342
* decl.c (gfc_match_function_decl): Avoid NULL pointer dereference.
(gfc_match_subroutine): Likewise.
gcc/testsuite/ChangeLog:
PR fortran/95342
* gfortran.dg/pr95342.f90: New test.
| -rw-r--r-- | gcc/fortran/decl.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr95342.f90 | 20 |
2 files changed, 22 insertions, 0 deletions
diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c index 93a155c..c85ae0d 100644 --- a/gcc/fortran/decl.c +++ b/gcc/fortran/decl.c @@ -7408,6 +7408,7 @@ gfc_match_function_decl (void) procedure interface body. */ if (sym->attr.is_bind_c && sym->attr.module_procedure && sym->old_symbol && strcmp (sym->name, sym->old_symbol->name) == 0 + && sym->binding_label && sym->old_symbol->binding_label && strcmp (sym->binding_label, sym->old_symbol->binding_label) != 0) { const char *null = "NULL", *s1, *s2; @@ -7923,6 +7924,7 @@ gfc_match_subroutine (void) procedure interface body. */ if (sym->attr.module_procedure && sym->old_symbol && strcmp (sym->name, sym->old_symbol->name) == 0 + && sym->binding_label && sym->old_symbol->binding_label && strcmp (sym->binding_label, sym->old_symbol->binding_label) != 0) { const char *null = "NULL", *s1, *s2; diff --git a/gcc/testsuite/gfortran.dg/pr95342.f90 b/gcc/testsuite/gfortran.dg/pr95342.f90 new file mode 100644 index 0000000..41c987d --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr95342.f90 @@ -0,0 +1,20 @@ +! { dg-do compile } +! PR fortran/95342 - ICE in gfc_match_subroutine, at fortran/decl.c:7913 + +module m1 + interface + module subroutine s() + end + subroutine s() bind(c) ! { dg-error "EXTERNAL attribute conflicts" } + end ! { dg-error "END INTERFACE" } + end interface +end + +module m2 + interface + module function f() + end + function f() bind(c) + end ! { dg-error "Duplicate EXTERNAL attribute" } + end interface +end |